INSPECTING

INSPECTING

Check pilot flame pattern and burner flame patterns often.

 

 

 

BURNERS

PILOT FLAME PATTERN

 

 

Figure 28 shows a correct pilot flame pattern. Figure 29 shows an incorrect pilot flame

 

 

pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the

 

thermocouple to cool. When the thermocouple cools, the fireplace will shut down.

 

Thermocouple

Pilot Burner

Thermocouple

Pilot Burner

 

 

 

Figure 28 - Correct Pilot

Figure 29 - Incorrect Pilot

Flame Pattern

Flame Pattern

If pilot flame pattern is incorrect, as shown in Figure 29

turn fireplace off (see To Turn Off Gas to Appliance, page 24)

see Troubleshooting, pages 26 through 29

FRONT BURNER FLAME PATTERN

Figure 30 shows correct front burner flame pattern. Figure 31 shows incorrect front burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of blue flame.

WARNING

WARNING ICON

G 001

If front burner flame pattern shows yellow tipping, your fireplace could produce increased levels of carbon monoxide. Follow instructions at bottom of this page. Yellow flame on rear burner is normal.

NOTICE

Do not mistake orange flames with yellow tipping. Dirt or other fine particles are burned by fireplace, causing brief patches of orange flame.

CORRECT FLAME PATTERN AT HIGH POSITION

Figure 30 - Correct Front Burner Flame Pattern

 

Yellow

 

Tipping

 

At Top

 

of Blue

 

Flame

INCORRECT FLAME PATTERN AT HIGH POSITION

 

Figure 31 - Incorrect Front Burner Flame Pattern

 

If front burner flame pattern is incorrect, as shown in Figure 31

 

• turn fireplace off (see To Turn Off Gas to Appliance, page 24

 

• see Troubleshooting, pages 26 through 29

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Desa UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE installation manual Inspecting, Burners, Notice, Pilot Flame Pattern